Pulp-shaping machine.



A.- KOMP.

PULP SEAPING MACHINE; i APPLIogTIoN FILED MAY zo, 199e.

Patented Nov. 30, 1909.

IIIIIIIIIIIIIIHII IHII m .TIFF

ivainstinctif-KoMP, or New YORK, n. Y.

i, ruhr-summe MAHINE.:

` Application filed May 20, 1908. Serial No. 433,803..

To allwhomfitmay concern."

Be 1t known that I, ALBERT Korir, a citizen o f theUn'ited Stat-es, anda Vresident of the city of,l New York, .borough of Brooklyn,

county of 'Kingsyan'd State of New York, have invented a' ,new andImproved Pulp-y Shaping Machine, of which the following is a full,clear, and exact description.

This `invention is apulp shaping machine, relating more especially toimprovements in machines of the character disclosed in Lett'ers'PatentNo. 868,946, granted to me'Octo- -ber 22,1907. 1

In practice I have found thatconsiderable difliculty `is experienced indetaching the shaped article from one of the dies, owing primarily tovthe enormous pressure under which the pulp is placed. This pressure alsocauses the rubber face or covering of the die to wrinkle or buckle,leaving ridges in the resulting product which it is necessary to removeordinarily by sand papering before the article is finished. I. find thatI Aamenabledto overcome these objections by using in ,the place of therubber covering of the die, a thin resilient cover, preferably of sheetmetal, which is detachable with the article produced. This cover gives asmooth finish, requiring no further work for its completion.

lThe invention further contemplates theJ provisionof means for lockingone of the dies successively closer to the other die 'after eachmovement of the latter, whereby the pulp .may be subjected to repeatedand increasing pressures.

Reference is to be had to the accompanyling,dr'a'wings'forming a part ofthis speciication, in which similar characters of reference indicatecorresponding parts in all the views.

Fi `ure 1 is a front elevation of a pulp y shapingV machine partly incentral vertical section, disclosing the nature of my improvements; Fig.2 is an enlarged central sectional view of the dies; and Fig. 3 is aperspectiveviewof the detachable die cover.

I have shown'the frame of the machine to whichmy improvements areapplied composed of a base block 5 and a head block 6,

"rigidly connected together at opposite sides by upright standards 7.Under the base block is journaled a shaft 8 having an eccentric 9 and adriving pulley 10 attached l thereto. Slidable centrally through thebaseblock 5, and resting. on the eccentric, is the plunger or stem y11 of afemale 'die 1.2,.which is shown for convenience in the shape of a basinand provided at its' upper edge-,with an upright cylinder 13.

In the upper portion, of the machine is Journaled a shaft 14, driventhrou h a gear 15 or other suitable means, and aving a pinion y16,attached thereto between the-l standards 7 which is in mesh with theteeth of a rack-bar 17. This bar is slidable throughthe to block 6 andcarries at its lower end a ma e die 18, which as shown, -is made as apart of a piston head slidably fitting within the c linder 13..' Thepiston head is constructs `with a packing ring 19,

spemcation f Letters raient. Patented Nov, 30,y 1909, l'

between which and the male die 18 are prov vided suitable recesses forfrictionally engaging the ears 20, four being shown, formed integrallywith a detachabledie cover 2 1, best shown in Fig. 3, and forming one ofthe principal features of my improvement.

This cover is made of a thin resilient mate- As the upper die is forcedfirmly to the pulpl in the lower die, the locking arm 22 is throwninwardly and engages the upper end of therack-bar with the top lshoulderof the stepped portion 23. The shaft 8 is then set in motion and forcesthe lower die by means of the eccentric to the upper die, thus furthercompressing the pulp. As the eccentric makes a complete revolution, theupper die will drop down sufciently for the locking arm to engage therack-bar with its second s houlder, and this operation continued unt1lthe pulp has been compressed to the.required point. lVhen theupper die1s withdrawn from the lower die, the article adheres to the detachablecover 21 and with it is removed. The cover is bodily removed from thefinon the edge, when the cover flies out by rea- Y produced, I meanseparating in mass, as, distinguished from removal by successiveportlons.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. In a machine for shaping pulp articles, a die having a piston headprovided with a piston ring, and a thin flexible cover for the diehaving projecting ears adapted to be frictionally engaged between thepiston head and ring.

2. In a machine for shaping pulp articles, the combination of two diesbetween which the article is formed, means for moving one die toward theother, and means for locking the other die successively closer to thefirst mentioned die after each movement thereof.

3. In a machine for shaping pulp articles, the combination of two diesbetween which the article is formed, means for repeatedly moving one dietoward the other, and an arm having a stepped end for locking the otherdie successively closer to theirst mentioned die after each movementthereof.-

4. In a machine for shaping pulp articles, the combination of two diesbetween which the article is formed, means for reciprocating one of saiddies, and means for locking/'35 the other dieI closer to the firstmentioned/611e after each-reciprocation thereof. l

5. In a machine for shaping pulp/articles, the combination of two dies,a` reciprocating 'ziember carrying one of said dies,'and a de- 4e vicefor en'gagin said member and locking the die carried t ereby inpositions successlvely closer to the other die after each application ofpressure `to the article.

6. In-a machine for shaping pul articles, the combination of a male anda emale die between which the article is formed, and aI relatively thinresilient cover for the lnale die` removable therefrom with the articleproduced and adapted to be bodily sprung from said article, said diecover having a closed bottom on which the end of the male die seats. H

7. In a machine for shaping pulp articles,

the combination of two d1es between 'which 5 5' the article is formed,and a die cover of resilientsheet material, detachably connected to oneofsaid dies, said cover having'sdes inclining in a direction tofacilitate its removal from the finished article.

In testimony whereof I have signed'nxy name to this specification in thepresence of two subscribing witnesses.

. ALBERT Korir."v

Witnesses:

WV. WV. I-IoL'r, JOHN I. DAVIS.

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